Horizontal boiler.



E. A. BEYL.

HORIZONTAL BOILER.

APPLICATION FILED SEPT. 21, 1908.

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Patented 0013 26, 1909.

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HORIZONTAL BOILER.

Specification of Letters Patent.

Application filed September 21, 1908.

Patented Oct. 26, 1909. Serial No. 454,016.

To all whom it may concern:

Be it known that I, EMIL A. BEYL, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Horizontal Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to horizontal boilers for heating water or evaporating the same into steam; and has for its object to improve and simplify the construction with a view of compactness and economy of first cost and increased efficiency in operation.

To these ends, my invention consists of the novel features of construction hereinafter described and defined in the claim. 7

The accompanying drawings illustrate a return flue water boiler embodying my invention; and therein, like notations refer to like parts throughout the several views.

In said drawings; Figure 1 is an end elevation of the said boiler, with some parts broken away and others shown in section; and Fig. 2 is a longitudinal section on the line 00 m of Fig. 1.

The numeral 1 represents the main or horizontal shell of the boiler which is of cylindrical form in cross section and contains the usual flues 2, end sheets 3 and 4, with the customary smoke box 5, stack box 6 and stack 7, related to each other in the customary way.

The main shell 1 is segmentally cut away and provided with a segmental crown sheet 8 and a segmental flue sheet 9 which cooperate with each other and the walls of the main shell 1 and the flue sheets 3 and 4 to inclose the main water space of the boiler; and the parts 8 and 9 also cooperate with the end wall of the main shell and the lower portions of the side walls of the same to afford the upper end portion of the fire box which is completed by means which will presently be noted.

The numerals 10 and 11 represent a pair of vertical concentric cylinders, spaced apart from each other, with their lower ends connected water tight by an annular head 12, and their upper ends united to the main shell 1 by segmental joint flanges marked, respectively, 11 and 12", formed on said Vertical cylinders and riveted fast to the main shell 1. The space between the two vertical cylinders '10 and 11 is, therefore, adapt-ed to afford a water leg space, and this is in communication with the water space of the main shell 1 by perforations or passages 13 formed in that portion of the wall of the main shell intervening between the segmental joint flanges 11 and 12 as best shown in Fig. 2. The inner cylinder 10 cooperates with the crown sheet 8 and flue sheet 9 and the adjacent portions of the walls of the shell 1, spanned thereby, to complete the fire box, and this is provided with a fuel admission door 14 in its outer end wall in position for the admission of the fuel at the top of the fire box and into the upper end of the cylinder 10. The concentric cylinders 10 and 11 are shown as resting upon the ash box 15 as a base, and this is properly formed to support a grate 16 directly under the lower end of the cylinder 10. The ash box 15 has the customary or any suitable doors 17.

With the construction above described, it will be seen that all the parts of the boiler and of the fire box are of cylindrical form in cross section; and, thence, that no stay bolts are anywhere required. It will also be noted that the largest body of water is directly over and around the upper end or hottest part of the fire box. It will also be noted that by this construction, the main shell 1 can be set comparatively low, and that the whole design is such that the parts are few in number and extremely compact in arrangement for the amount of heating surface rendered available. It further follows that the boiler is highly eflicient, while it is at the same time simple and cheap to make.

I have demonstrated the efficiency of the boiler, herein disclosed and claimed, by actual usage thereof.

While I have shown the boiler designed for use in heating water only, it will be readily understood that the same would be equally eflicient for evaporating the water into steam if the shell 1 was made of the proper diameter to afford a steam space above the flues and water level. It will also be understood that while I have shown a return flue boiler, the fire box and water leg features of the structure herein described could also be applied in a direct flue boiler. They are of especial advantage, however, in a return flue boiler.

What I claim is In a horizontal boiler, the combination with a main cylindrical shell segmentally cut away on its under side'and provided with segmental crown sheet 8 and segmental flue sheet 9 cooperating with each other and said shell to afiord the upper end of the fire box, of the pair of concentric vertical cylinders 10 and 11 spaced apart and connected water tight at their lower ends, and which cylinders 10 and 11 have, on their upper ends, segmental joint flanges both riveted fast to said main shell of the boiler with the intervening portion of the main shell perforated to connect the water spaces of the 15 main shell and the leg formed by the parts 10 and 11, a grate at the bottom of the cylinder 10, and a fuel admission door at the top of the fire box, substantially as described.

In testimony whereof I afiix my signature 20 in presence 0 two witnesses.

EMIL A. BEYL.

Witnesses:

HARRY D. KILGORE, M. E. RoNEY. 

